Application Gateway Ingress Controller I am not able to access the application throgh Ingress controller but was able to access throgh LB External IP - kubernetes-ingress

Question

I have created Ingress Controller for my deployment and I am able to access for some time and when i tried the same sometime later i was not able to access the application. But, I was able to access the application with LoadBalancer External IP at the same time. Please can someone help here.
Here is my deployment:
apiVersion: apps/v1
kind: Deployment
metadata:
creationTimestamp: null
labels:
app: lable
name: label
spec:
replicas: 1
selector:
matchLabels:
app: label
strategy: {}
template:
metadata:
creationTimestamp: null
labels:
app: label
spec:
containers:
- image: <Image Name>
name: label
env:
- name: ASPNETCORE_ENVIRONMENT
value: "UAT"
- name: EnvironmentName
value: "UAT"
volumeMounts:
- name: mst-storage
mountPath: /home/appuser/.aspnet/DataProtection-Keys
volumes:
- name: mst-storage
emptyDir: {}
status: {}
---
apiVersion: v1
kind: Service
metadata:
name: label
spec:
selector:
app: label
ports:
- protocol: TCP
port: 80
targetPort: 5000
type: LoadBalancer
status:
loadBalancer: {}
---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: label
annotations:
kubernetes.io/ingress.class: azure/application-gateway
spec:
rules:
- http:
paths:
- path: /api/*
backend:
service:
name: label
port:
number: 80
pathType: Prefix
- path: /api/*
backend:
service:
name: label
port:
number: 80
pathType: Prefix
- path: /
backend:
service:
name: label
port:
number: 80
pathType: Prefix
```

Answer 1

Are you still facing this issue? You can always check application gateway ingress controller logs which constantly monitors the changes in the AKS PODS and pass that information to Application Gateway so that both components are in sync. If there are any issues those logs will clearly show the error information.
Example Command:
kubectl logs ingress-appgw-deployment-* -n kube-system
Also in the above deployment YAML file , can you kindly check the below section under metadata->labels. It was mentioned as app: lable (There is a spell mistake ?)
kind: Deployment
metadata:
creationTimestamp: null
labels:
app: lable
Compare that with Service YAML file (Spec -> Selector -> app: label )
spec:
selector:
app: label